Legal claims defining the scope of protection, as filed with the USPTO.
2. The method of claim 1, wherein the information in the RO configuration relates to one or more ROs dedicated to a two-step RACH procedure.
3. The method of claim 1, wherein the information related to the ordered preamble resources indicates that the ordered preamble resources are ordered sequentially based at least in part on preamble sequence indexes within an RO, frequency resource indexes for a first set of ROs associated with a frequency division multiplexing (FDM) configuration, time resource indexes for a second set of ROs associated with a time division multiplexing (TDM) configuration within a physical RACH (PRACH) slot, and a set of PRACH slot indexes.
4. The method of claim 3, wherein the plurality of parameters used to generate the preamble resource index include a first parameter selected from the preamble sequence indexes within the RO, a second parameter selected from the frequency resource indexes for the first set of ROs associated with the FDM configuration, a third parameter selected from the time resource indexes for the second set of ROs associated with the TDM configuration, and a fourth parameter selected from the set of PRACH slot indexes.
5. The method of claim 1, wherein the preamble resource index is generated based at least in part on a function that applies different weights to respective parameters of the plurality of parameters.
6. The method of claim 1, wherein a PRU configuration associated with the payload is one of multiple PRU configurations associated with time and frequency resources that are configured for the uplink RACH message.
7. The method of claim 6, wherein the multiple PRU configurations are indexed based at least in part on indexes associated with the ordered preamble resources.
9. The method of claim 8, wherein the one or more criteria used to order the multiple PRU configurations include one or more of an ascending modulation coding scheme or an ascending transport block size, wherein the one or more criteria include the one or more of the ascending modulation coding scheme or the ascending transport block size based at least in part on the multiple PRU configurations overlapping in one or more of the time or frequency resources.
10. The method of claim 8, wherein the one or more criteria used to order the multiple PRU configurations include one or more of ascending frequency occasions or ascending time occasions, wherein the one or more criteria include the one or more of the ascending frequency occasions or the ascending time occasions based at least in part on the multiple PRU configurations not overlapping in the time or frequency resources.
12. The method of claim 11, wherein the set of parameters used to generate the scrambling identifier is further based at least in part on a random access radio network temporary identifier and a data scrambling identifier configured by the base station.
13. The method of claim 11, wherein the scrambling identifier is generated based at least in part on a function that applies different weights to respective parameters of the set of parameters.
14. The method of claim 11, wherein generating the uplink RACH message further includes generating a demodulation reference signal (DMRS) sequence associated with the uplink RACH message, wherein the DMRS sequence is scrambled based at least in part on the scrambling identifier for the payload and one or more time-dependent parameters associated with a PUSCH waveform used to transmit the payload.
15. The method of claim 1, wherein the uplink RACH message is associated with a two-step RACH procedure.
18. The method of claim 17, wherein the RNTI masking the CRC of the PDCCH is a UE-specific identifier individually targeting the UE, and wherein the RNTI is based at least in part on one or more of a data scrambling identifier for a physical uplink shared channel, a demodulation reference signal scrambling identifier associated with the uplink RACH message, the preamble resource index, or the unique identifier associated with the UE that is carried in the payload of the uplink RACH message.
19. The method of claim 17, wherein the RNTI masking the CRC of the PDCCH is a group identifier targeting a group of UEs sharing a particular RO, and wherein the RNTI is based at least in part on one or more of a resource index associated with the particular RO shared by the group of UEs, a common time and frequency resource index associated with one or more PRUs shared by the group of UEs, a common demodulation reference signal resource index shared by the group of UEs, or a time and frequency resource index associated with the downlink response message.
21. The UE of claim 20, wherein the information in the RO configuration relates to one or more ROs dedicated to a two-step RACH procedure.
22. The UE of claim 20, wherein the information related to the ordered preamble resources indicates that the ordered preamble resources are ordered sequentially based at least in part on preamble sequence indexes within an RO, frequency resource indexes for a first set of ROs associated with a frequency division multiplexing (FDM) configuration, time resource indexes for a second set of ROs associated with a time division multiplexing (TDM) configuration within a physical RACH (PRACH) slot, and a set of PRACH slot indexes.
23. The UE of claim 22, wherein the plurality of parameters used to generate the preamble resource index include a first parameter selected from the preamble sequence indexes within the RO, a second parameter selected from the frequency resource indexes for the first set of ROs associated with the FDM configuration, a third parameter selected from the time resource indexes for the second set of ROs associated with the TDM configuration, and a fourth parameter selected from the set of PRACH slot indexes.
24. The UE of claim 20, wherein the preamble resource index is generated based at least in part on a function that applies different weights to respective parameters of the plurality of parameters.
25. The UE of claim 20, wherein a PRU configuration associated with the payload is one of multiple PRU configurations associated with time and frequency resources that are configured for the uplink RACH message.
26. The UE of claim 25, wherein the multiple PRU configurations are indexed based at least in part on indexes associated with the ordered preamble resources.
28. The UE of claim 27, wherein the one or more criteria used to order the multiple PRU configurations include one or more of an ascending modulation coding scheme or an ascending transport block size, wherein the one or more criteria include the one or more of the ascending modulation coding scheme or the ascending transport block size based at least in part on the multiple PRU configurations overlapping in one or more of the time or frequency resources.
29. The UE of claim 27, wherein the one or more criteria used to order the multiple PRU configurations include one or more of ascending frequency occasions or ascending time occasions, wherein the one or more criteria include the one or more of the ascending frequency occasions or the ascending time occasions based at least in part on the multiple PRU configurations not overlapping in the time or frequency resources.
31. The UE of claim 30, wherein the set of parameters used to generate the scrambling identifier is further based at least in part on a random access radio network temporary identifier and a data scrambling identifier configured by the base station.
32. The UE of claim 30, wherein the scrambling identifier is generated based at least in part on a function that applies different weights to respective parameters of the set of parameters.
33. The UE of claim 30, wherein generating the uplink RACH message further includes generating a demodulation reference signal (DMRS) sequence associated with the uplink RACH message, wherein the DMRS sequence is scrambled based at least in part on the scrambling identifier for the payload and one or more time-dependent parameters associated with a PUSCH waveform used to transmit the payload.
34. The UE of claim 20, wherein the uplink RACH message is associated with a two-step RACH procedure.
37. The UE of claim 36, wherein the RNTI masking the CRC of the PDCCH is a UE-specific identifier individually targeting the UE, and wherein the RNTI is based at least in part on one or more of a data scrambling identifier for a physical uplink shared channel, a demodulation reference signal scrambling identifier associated with the uplink RACH message, the preamble resource index, or the unique identifier associated with the UE that is carried in the payload of the uplink RACH message.
38. The UE of claim 36, wherein the RNTI masking the CRC of the PDCCH is a group identifier targeting a group of UEs sharing a particular RO, and wherein the RNTI is based at least in part on one or more of a resource index associated with the particular RO shared by the group of UEs, a common time and frequency resource index associated with one or more PRUs shared by the group of UEs, a common demodulation reference signal resource index shared by the group of UEs, or a time and frequency resource index associated with the downlink response message.
40. The non-transitory computer-readable medium of claim 39, wherein the information related to the ordered preamble resources indicates that the ordered preamble resources are ordered sequentially based at least in part on preamble sequence indexes within an RO, frequency resource indexes for a first set of ROs associated with a frequency division multiplexing (FDM) configuration, time resource indexes for a second set of ROs associated with a time division multiplexing (TDM) configuration within a physical RACH (PRACH) slot, and a set of PRACH slot indexes.
41. The non-transitory computer-readable medium of claim 40, wherein the plurality of parameters used to generate the preamble resource index include a first parameter selected from the preamble sequence indexes within the RO, a second parameter selected from the frequency resource indexes for the first set of ROs associated with the FDM configuration, a third parameter selected from the time resource indexes for the second set of ROs associated with the TDM configuration, and a fourth parameter selected from the set of PRACH slot indexes.
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October 11, 2022
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